Standard No.:	GB/T 7690.5-2013
English Name:	Reinforcements—Test method for yarns—Part 5:Determination of fiber diameter for glass fiber
Chinese Name:	增强材料 纱线试验方法 第5部分：玻璃纤维纤维直径的测定
Chinese Classification:	Q36    Glass fibre
Professional Classification:	GB    National Standard
ICS Classification:	59.100.10 59.100.10     Textile glass materials 59.100.10
Issued by:	AQSIQ;SAC
Issued on:	2013-9-18
Implemented on:	2014-6-1
Status:	valid
Superseding:	GB/T 7690.5-2001 Reinforcements - Test method for yarns - Part 5: Determination of fibre diameter for glass fibre
Language:	English
File Format:	PDF
Word Count:	4000 words
Price(USD):	110.00
Delivery:	via email in 1~3 business day

GB/T7690的本部分规定了玻璃纤维产品中纤维平均直径(即实际直径的平均值)的两种测试方法,即纵向法和横截面法。
本方法适用于玻璃纤维制品中的定长纤维或连续纤维。
不得将平均直径与公称直径相混淆,公称直径是用来命名纱线和其构成材料的,是与平均直径相关的修约成整数的数值。